Study of Using Solar Thermal Power for the Margarine Melting Heat Process.
Study of Using Solar Thermal Power for the Margarine Melting Heat Process.
复制标题
利用太阳能热发电进行人造黄油熔化热过程的研究。
DOI：
10.1115/1.4028367
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
A. Soliman
中科院分区：
文献类型：
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作者：
M. A. Sharaf Eldean;A. Soliman
熔化人造黄油的加热过程需要大量的热能，因为它的熔点很高，而且它所在的储存库很大。现有的加热人造黄油的方法每小时生产和使用化石燃料的成本很高，这已被证明对环境有负面影响。因此，我们进行了利用太阳能热能作为人造黄油熔化过程的替代能源的分析可行性研究。在这项研究中，比较了抛物面槽集热器(PTC)太阳场和蒸汽锅炉的效率和成本效益。还研究了不同的工质(水蒸气和Therminol-VP1导热油(HTO))通过太阳场的情况。结果表明，无论工作流体的类型如何，传统配置的总每小时成本(美元/小时)都远远高于太阳能应用。此外，常规配置会使二氧化碳、一氧化碳和亚硝酸盐的排放量分别增加117.4公斤/天、184公斤/天和74.7万 公斤/天，从而对环境造成负面影响。在温差不超过25 °C时，最佳熔化时间为8~10h，最佳储罐体积参数为100m~3。建议将以水和蒸汽为工质的太阳能PTC作为人造奶油熔融加热过程的重要替代方案。
The heating process of melting margarine requires a vast amount of thermal energy due to its high melting point and the size of the reservoir it is contained in. Existing methods to heat margarine have a high hourly cost of production and use fossil fuels which have been shown to have a negative impact on the environment. Thus, we perform an analytical feasibility study of using solar thermal power as an alternative energy source for the margarine melting process. In this study, the efficiency and cost effectiveness of a parabolic trough collector (PTC) solar field are compared with that of a steam boiler. Different working fluids (water vapor and Therminol-VP1 heat transfer oil (HTO)) through the solar field are also investigated. The results reveal the total hourly cost ($/h) by the conventional configuration is much greater than the solar applications regardless of the type of working fluid. Moreover, the conventional configuration causes a negative impact to the environment by increasing the amount of CO2, CO, and NO2 by 117.4 kg/day, 184 kg/day, and 74.7 kg/day, respectively. Optimized period of melt and tank volume parameters at temperature differences not exceeding 25 °C are found to be 8-10 h and 100 m3, respectively. The solar PTC operated with water and steam as the working fluid is recommended as a vital alternative for the margarine melting heating process.